Integrated electronic component and resonant converter circuit

Abstract

An integrated electronic component for a converter is provided. The integrated electronic component includes a magnetic core, a first primary side winding, a second primary side winding, a first secondary side winding, and a second secondary side winding. The magnetic core has spacing configuration between a first pole and a second pole. The first pole and the second pole are located along a magnetic flux path. The first primary side winding and the first secondary side winding are wound around the first pole. The second primary side winding and the second secondary side winding are wound around the second pole. The first secondary side winding and the second secondary side winding are coupled to at least one first rectifier switch and at least one second rectifier switch, and on-time periods of the at least one first rectifier switch and the at least one second rectifier switch are different.

What is claimed is: 
     
         1 . An integrated electronic component for a converter, wherein the integrated electronic component comprises:
 a magnetic core, having spacing configuration between a first pole and a second pole, wherein the first pole and the second pole are located along a magnetic flux path;   a first primary side winding, wound around the first pole;   a second primary side winding, wound around the second pole;   a first secondary side winding, wound around the first pole; and   a second secondary side winding, wound around the second pole;   wherein the first secondary side winding and the second secondary side winding are respectively coupled to at least one first rectifier switch and at least one second rectifier switch;   wherein on-time periods of the at least one first rectifier switch and the at least one second rectifier switch are different.   
     
     
         2 . The integrated electronic component as claimed in  claim 1 , further comprising:
 a third pole, located along the magnetic flux path; and   a first panel and a second panel, wherein the first pole and the second pole are located between the first panel and the second panel, and the first panel and the second panel are stacked along a first direction perpendicular to a second direction in which the first pole and the second pole are arranged.   
     
     
         3 . The integrated electronic component as claimed in  claim 2 , wherein the third pole is located between the first pole and the second pole, and the first pole, the second pole, and the third pole are arranged along the second direction. 
     
     
         4 . The integrated electronic component as claimed in  claim 2 , further comprising a fourth pole, wherein the first pole and the second pole are located between the third pole and the fourth pole, and the first pole, the second pole, the third pole, and the fourth pole are arranged along the second direction. 
     
     
         5 . The integrated electronic component as claimed in  claim 2 , wherein:
 long axis of the third pole is extended along a third direction, and the third direction is perpendicular to the first direction and the second direction; and   the integrated electronic component further comprises at least one window, exposure direction of the at least one window is parallel to the third direction, which causes the first primary side winding, the second primary side winding, the first secondary side winding, and the second secondary side winding to be exposed.   
     
     
         6 . The integrated electronic component as claimed in  claim 2 , wherein long axis of the first pole and long axis of the second pole are extended along a third direction, and the third direction is perpendicular to the first direction and the second direction. 
     
     
         7 . The integrated electronic component as claimed in  claim 2 , wherein the first secondary side winding comprises two first secondary side sub-windings, the second secondary side winding comprises two second secondary side sub-windings. 
     
     
         8 . The integrated electronic component as claimed in  claim 7 , wherein the two first secondary side sub-windings are arranged on both sides of the first primary side winding, the two second secondary side sub-windings are arranged on both sides of the second primary side winding. 
     
     
         9 . The integrated electronic component as claimed in  claim 7 , wherein:
 the two first secondary side sub-windings comprise a top first secondary side sub-winding and a bottom first secondary side sub-winding, wherein the top first secondary side sub-winding is located between the first primary side winding and the first panel, and the bottom first secondary side sub-winding is located between the first primary side winding and the second panel; and   the two second secondary side sub-windings comprise a top second secondary side sub-winding and a bottom second secondary side sub-winding, wherein the top second secondary side sub-winding is located between the second primary side winding and the first panel, and the bottom second secondary side sub-winding is located between the second primary side winding and the second panel.   
     
     
         10 . The integrated electronic component as claimed in  claim 7 , wherein the two first secondary side sub-windings are connected through a plurality of first conductive vias and coupled to an output load circuit, and the two second secondary side sub-windings are connected through a plurality of second conductive vias and coupled to the output load circuit. 
     
     
         11 . The integrated electronic component as claimed in  claim 7 , further comprising a rectifier circuit, wherein:
 the rectifier circuit comprises two first rectifier switches and two second rectifier switches;   one of the two first rectifier switches is coupled to one of the two first secondary side sub-windings;   the other of the two first rectifier switches is coupled to the other of the two first secondary side sub-windings;   one of the two second rectifier switches is coupled to one of the two second secondary side sub-windings; and   the other of the two second rectifier switches is coupled to the other of the two second secondary side sub-windings.   
     
     
         12 . The integrated electronic component as claimed in  claim 11 , further comprising a resonant circuit, wherein the resonant circuit comprises a resonant capacitor, an excitation inductor, and a resonant inductor coupled in series. 
     
     
         13 . The integrated electronic component as claimed in  claim 12 , further comprising:
 a switching circuit, having a first switch and a second switch coupled in series, wherein the first switch and the second switch are connected in series through a first node, and the resonant circuit is coupled between the first node and a ground terminal; and   an output load circuit, coupled to the rectifier circuit, and configured to output an output current from the rectifier circuit.   
     
     
         14 . The integrated electronic component as claimed in  claim 13 , wherein:
 the two first rectifier switches and the first switch are ON and the second switch and the two second rectifier switches are OFF, during a positive half cycle; and   the first switch and the two first rectifier switches are OFF and the second switch and the two second rectifier switches are ON, during a negative half cycle.   
     
     
         15 . The integrated electronic component as claimed in  claim 1 , further comprising a resonant circuit, wherein the resonant circuit comprises a resonant capacitor, an excitation inductor, and a resonant inductor coupled in series, the excitation inductor comprises the first pole and the second pole, the resonant inductor comprises a third pole, and the first pole, the second pole, and the third pole are located along the magnetic flux path. 
     
     
         16 . The integrated electronic component as claimed in  claim 1 , wherein the first primary side winding and the second primary side winding are coupled in series. 
     
     
         17 . The integrated electronic component as claimed in  claim 1 , wherein the first primary side winding and the second primary side winding have the same number of turns. 
     
     
         18 . A resonant converter circuit, comprising:
 a power supply;   the integrated electronic component as claimed in  claim 1 ;   a primary side circuit, coupled between the power supply and the integrated electronic component; and   a secondary side circuit, coupled between the integrated electronic component and a ground terminal.   
     
     
         19 . The resonant converter circuit as claimed in  claim 18 , wherein:
 the integrated electronic component further comprises a resonant circuit, and the resonant circuit is coupled between a first node and the ground terminal, and has a resonant capacitor, an excitation inductor, and a resonant inductor coupled in series;   the primary side circuit comprises a half bridge switch, and the half bridge switch comprises a first switch and a second switch, wherein the first switch is coupled between the power supply and the first node, and the second switch is coupled between the first node and the ground terminal;   the secondary side circuit comprises:
 a rectifier circuit, coupled between a first secondary side winding and a second secondary side winding, and having two first rectifier switches and two second rectifier switches; and 
 an output load circuit, configured to output an output current; 
   the first switch and the two first rectifier switches are ON and the second switch and the two second rectifier switches are OFF, during a positive half cycle; and   the first switch and the two first rectifier switches are OFF and the second switch and the two second rectifier switches are ON, during a negative half cycle.   
     
     
         20 . The resonant converter circuit as claimed in  claim 19 , wherein the excitation inductor comprises a first pole and a second pole, the resonant capacitor comprises a third pole, and the first pole, the second pole, and the third pole are located along a magnetic flux path.